Hatir & Skroll
Summon a Winter Wolf or Warg.
Summon 1-3 Wargs.
Unless Wargare were renamed or Warg are a new race that’s being added or, as Jonathan has pointed out, you mean the troop ‘Warg’, that’s an oversight. Just letting you guys know in advance.
[Tidbit from an old Q&A: Wargare were originally intended to be called Warg (= wolf) but somebody forgot a space in the opening sentence in the design document: ‘The Warg are’ → ‘The Wargare’]